Biaxial stress high temperature creep deformation test apparatus

A high-temperature creep and test device technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, can solve problems such as the inability to meet the requirements of material bidirectional stress testing, and achieve the effect of automatic temperature control
CN104777040AInactive Publication Date: 2015-07-15ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
Publication Date
2015-07-15
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a biaxial stress high temperature creep deformation test apparatus. The apparatus comprises a sample and a high temperature furnace, two sidewalls of the high temperature furnace are symmetrically provided with vertical narrow long holes, the sample is crossed in shape, the upper end of the vertical rod of the sample is fixed to the top in the high temperature furnace, a counterweight hangs at the lower end of the vertical rod, the left end and the right end of the across rod of the sample are respectively connected with one ends of steel ropes, the other ends of the steel ropes traverse through the long holes, are wound on pulleys and then are provided with counterweights, and the pulleys are arranged on vertical guide rods respectively, and can vertically move along the guide rods. The crossed sample is adopted, horizontal and vertical pulling forces are applied to the sample in the high temperature furnace, so biaxial stress high temperature creep deformation test requirements of a material are met to make the high temperature creep deformation test approach practical use conditions of the material; and a temperature control system is arranged to realize automatic control of the temperature.
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Description

technical field

[0001] The invention relates to a high-temperature creep test device, in particular to a bidirectional stress high-temperature creep test device. Background technique

[0002] High-temperature creep refers to the slow plastic deformation of the sample under continuous stress in a high-temperature environment, and the stress is much smaller than the yield strength of the material, which can be either tensile or compressive. High temperature creep can effectively predict the strain trend and fracture life of materials after long-term service under high temperature and stress, which is an important mechanical performance parameter. Existing high-temperature creep samples are usually subjected to continuous action under uniaxial tensile load at high temperature, and an auxiliary measurement and recording system is added, and the test is carried out in accordance with "GB / T 2039-2012 Metal Materials Uniaxial Tensile Creep Test Method".

[0003] In the prior art, ...

Claims

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